#### The ratio between the curved surface and the total surface of a cylinder is 1: 2. Find the volume of the cylinder, given that its total surface area is 616 cm^{2}.

**Solution:**

#### Two cylindrical jars contain the same amount of milk. If their diameters are in the ratio 3 : 4, find the ratio of their heights.

**Solution:**

**More Solutions:**

- The length of the tangent to a circle is 24 cm and the distance of Q.
- If the angle between two radii of a circle is 130°.
- If tangents PA and PB from an exterior point P to a circle.
- At one end A of a diameter AB of a circle of radius 5 cm.
- AB is a chord of the circle such that ∠ACB = 50°.
- PA and PB are tangents to a circle with centre O.